Connecting Structure

ABSTRACT

The present invention relates to a connecting structure including: a node member having an accommodating space formed therein; a lower truss member disposed penetratingly at the lower portion of the node member, the lower truss member being made of a material with tension and compression-resistant rigidity and having a predetermined length; an upper truss member disposed penetratingly at the upper portion of the node member in such a manner as to be spaced apart from the lower truss member, the upper truss member being made of a material with tension and compression-resistant rigidity and having a predetermined length; and a filler adapted to be filled in the node member in such a manner as to be initially injected in a fluid state into the accommodating space of the node member so as to surround the lower truss member and the upper truss member, and then to be hardened as time elapses so as to rigidly couple the lower truss member and the upper truss member therewith.

TECHNICAL FIELD

The present invention relates to a connecting structure, and more particularly, to such a connecting structure having a new connecting system where a solid type of space frame structure is formed as an integral body.

A space frame is a structural system in which linear members are connected to one another for transmitting a force flow to the linear members.

The space frame may have two-dimensional components, but broadly has a flat or curved shape.

Especially, the space frame having the linear members connected at nodes to one another is called a space truss or simply a truss.

In this case, the term ‘truss’ is more widely used than the space frame, and therefore, it should be noted hereinafter that the truss as a part of the space frame has the same meaning as the space frame.

Generally, if the internal structure and shape of the space frame are determined, the connecting way has to be solved finally.

The connecting way is the most important in the design and construction of the space frame.

For this reason, many researches and developments on the connecting portions of the space frame have been actively carried out.

Based upon the researches and developments on the connecting portions of the space frame, it is required that the connecting parts should be selected depending on the internal structure of the space frame, be high in rigidity, be simple structurally and dynamically, and be easy in manufacturing. A representative method for forming the connecting portions is carried out by means of welding, and another method is carried out by using mechanical instruments.

In case of adopting the welding type, the on-site working costs are increased, and in case of using the mechanical instruments, the connecting part-associated costs are increased.

The truss having steel members like steel beams (for example, H or c sections, and so on) or steel bars for various purposes is used generally at construction sites.

BACKGROUND ART

Examples of the conventional trusses are shown in FIGS. 1 to 5.

As shown in FIGS. 1 and 2, the conventional truss has a basic structure wherein a lower tension and compression member (a lower chord) and an upper tension and compression member (an upper chord) are formed of a steel beam or a pipe, and connecting members (inclined members) are provided to connect the lower tension and compression member and the upper tension and compression member to each other by means of welding.

As another example, as shown in FIG. 3, the conventional truss 1 is configured wherein a lower transverse steel bar 2 and a lower longitudinal steel bar 3 cross each other to constitute a lower steel bar 4, such that a vertical member 5 is coupled to the lower steel bar 4, and in the same manner as above, an upper transverse steel bar 6 and an upper longitudinal steel bar 7 cross each other, while being spaced apart from the lower steel bar 4, to constitute an upper steel bar 8, such that the vertical member 5 is coupled to the upper steel bar 8.

Further, the conventional truss 1 a is, as shown in FIG. 4, configured wherein lower truss members 2 a disposed to cross each other and upper truss members 3 a disposed to cross each other are connected by means of a vertical member 4 a, and in this case, the connecting is carried out by means of welding.

The points at which the above-mentioned members of the conventional trusses meet one another are generally connected by means of welding.

As another connecting ways, in addition to the welding, there have been proposed an SDC system, a unistrut system, and a triodetic system developed by Fuller, Wachsmann, du Chateau, Lederer, and Makowski, and a MERO system (which is shown in FIG. 5) is a most popular connecting way.

However, most of the conventional trusses still adopt the welding way for fixedly connecting the components to one another.

In this case, however, the conventional trusses have some disadvantages that the surrounding portions of the members connected to each other are lowered at their rigidity by the heat generated during welding, thereby making the load-supporting capability thereof undesirably deteriorated.

In case of connecting the steel bars, the welding is basically not allowed, unless the steel bar is made of a specific material or the limitation laws are all observed. In stead of adopting the welding, in this case, it is recommended that the mechanical instruments should be used.

Additionally, in the conventional trusses it is difficult to check the safety of the welded state by naked eyes, and so as to check the welded state, thus, an additional method should be introduced.

So as to form the conventional trusses, further, since the points at which the components meet one another are one by one welded, there occur some problems that the truss-forming work is complicated and needs a relatively long period of time, many working persons are required, and the working costs are much consumed.

Also, the conventional trusses have been applied to a deck plate.

Even when the conventional trusses are applied to the deck plate, however, the steel bars forming the trusses are connected by means of welding. So as to carry out the welding, therefore, many persons for manual-operations are needed, or high expensive automatic welding production equipment is needed. In case of using the general steel bars, the rigidity of the steel bar is lowered by the heat generated during welding, thereby making the load-supporting capability deteriorated. To solve the problems, thus, a relatively expensive heat-resistant material should be introduced, which results in the increase of the manufacturing costs of the deck plate.

Further, the conventional trusses are applied to a wall form, and in this case, the components of the truss are connected by means of welding, such that the same problems as mentioned above occur.

Furthermore, in the case where the components of the truss is formed of not steel, but a composite material, they are not basically connected by means of welding.

In this case, they can be connected by means of chemical bonding, but at this time, the connecting relation is not sufficiently strong, such that it is difficult to adopt the welding as the connecting way of the components formed of other materials.

Moreover, the welding should be carried out in a uniform manner along the periphery of the contacted surfaces of the connected members, but in the case where the number of members to be welded is large, the uniform welding is substantially hard. Especially, in case of having one complicate connecting portion at which a plurality of components are all met like a multi-directional solid truss structure, or in the case where the sectional shapes of the components are not simple, it is difficult to carry out the connecting operations of the truss members by means of welding.

In this case, thus, the solid truss structure having a structural resistance performance is not generally formed, and the components are directly tied by means of steel bar-binding wires at the construction sites. Their examples are slab bar-arrangement, wall body bar-arrangement, and tunnel lining bar-arrangement.

Because of the difficulties or incompleteness of the connection operations, it is found that the multi-directional solid truss structure is really weak at the construction sites.

In constructing the steel bar net at a slurry wall technique, for example, the steel bar net can not be basically made by means of welding, and also, it can not be made by means of chemical bonding providing an incomplete connecting relation. Thus, the steel bar net is made by using the tying through the binding wires and the mechanical instruments.

While the steel bar net made by this process is being delivered or exposed to external forces, it may be twisted and disconnected, and in even cases, it should be made again.

In constructing a retaining wall, for example, if the connecting portions of a structure support body like the steel bar net are strongly formed, without having the welding, a plate member like a form is previously connected integrally to both side surfaces of the connecting structure, such that the modularized construction based upon the previous manufacturing process can be achieved, but not through the site construction, thereby reducing the construction period of time. Up to now, however, no practical connecting method is developed such that the modularized construction has been never tried in the industrial field.

DISCLOSURE OF INVENTION Technical Problem

Accordingly, the present invention is provided to solve these problems the conventional practices have had, and it is an object of the present invention to provide a connecting structure that is capable of connecting the components of a truss to one another in a rigidly fixed manner, but not by means of welding, thereby overcoming some disadvantages that the rigidity of the components is lowered by welding heat, the welding operation is difficult when the components are connected to one another, the welding time is extended, the welding state of the connected portions is not checked safely, and the conditions where welding is not allowed (in the case where the limitation laws are observed, or in the case where the components are made of composite materials) are defined, that is capable of having sufficient rigidity, even when it is used for forming a deck plate or a wall form, thereby enabling the construction to be modularized based upon a previous manufacturing process, and that is capable of having a multi-directional truss structure especially when it is applied to the deck plate, thereby stably supporting the load applied to the deck plate even when the connecting structure placed on the lower surface of the deck plate is disposed in any direction thereof.

Technical Solution

To achieve the above object, according to an aspect of the present invention, there is provided a connecting structure including: a node member having an accommodating space formed therein; a lower truss member disposed penetratingly at the lower portion of the node member, the lower truss member being made of a material with tension and compression-resistant rigidity and having a predetermined length; an upper truss member disposed penetratingly at the upper portion of the node member in such a manner as to be spaced apart from the lower truss member, the upper truss member being made of a material with tension and compression-resistant rigidity and having a predetermined length; and a filler adapted to be filled in the node member in such a manner as to be initially injected in a fluid state into the accommodating space of the node member so as to surround the lower truss member and the upper truss member, and then to be hardened as time elapses so as to rigidly couple the lower truss member and the upper truss member therewith.

Further, the filler of the connecting structure of the present invention is formed of a mixture made by mixing aggregates formed of cement, gravel and sand, and water.

Further, the filler of the connecting structure of the present invention is formed of a resin hardened after supplied at a flowing state.

Further, the filler of the connecting structure of the present invention is mixed with an additive material therein before supplied to the node member, so as to complement or improve a resistance capability thereof after being hardened.

Further, the additive material of the filler of the connecting structure of the present invention is any one selected from steel wires, steel fiber, and other fiber materials, so as to complement or improve the resistance capability of the filler.

Also, the lower truss member of the connecting structure of the present invention includes a lower transverse tension and compression rod having a predetermined length and a lower longitudinal tension and compression rod having a predetermined length and disposed to cross the lower transverse tension and compression rod, and the upper truss member of the connecting structure of the present invention includes an upper transverse tension and compression rod having a predetermined length and an upper longitudinal tension and compression rod having a predetermined length and disposed to cross the upper transverse tension and compression rod.

Further, the lower truss member and the upper truss member of the connecting structure of the present invention may be formed of various materials like a steel bar, a steel material, a composite material, and so on.

The node member of the connecting structure of the present invention includes, as shown in FIG. 7, a first lower column portion having first grooves formed in one direction at the top portion thereof, a second lower column portion adapted to be coupled to the top side of the first lower column portion and having second grooves formed in the same direction as the first grooves at the bottom portion thereof and third grooves formed in a different direction from the second grooves at the top portion thereof, a middle column portion adapted to be coupled to the top side of the second lower column portion and having fourth grooves formed in the same direction as the third grooves at the bottom portion thereof and fifth grooves formed in the same direction as the fourth grooves at the top portion thereof, a first upper column portion adapted to be coupled to the top side of the middle column portion and having sixth grooves formed in the same direction as the fifth grooves at the bottom portion thereof and seventh grooves formed in a different direction from the sixth grooves at the top portion thereof, and a second upper column portion adapted to be coupled to the top side of the first upper column portion and having eighth grooves formed in the same direction as the seventh grooves at the bottom portion thereof.

Moreover, the node member of the connecting structure includes: as shown in FIG. 10, a first coupling plate having a first flat portion, a first right side inclined plate portion extended curvedly from one end of the first flat portion and having a first right side lower groove formed at the lower portion thereof and a first right side upper groove formed at the upper portion thereof, and a first left side inclined plate portion extended curvedly from the other end of the first flat portion and having a first left side lower groove formed at the lower portion thereof and a first left side upper groove formed at the upper portion thereof; a second coupling plate having a second flat portion, a second right side inclined plate portion extended curvedly from one end of the second flat portion and having a second right side lower groove formed at the lower portion thereof and a second right side upper groove formed at the upper portion thereof, and a second left side inclined plate portion extended curvedly from the other end of the second flat portion and having a second left side lower groove formed at the lower portion thereof and a second left side upper groove formed at the upper portion thereof; a third coupling plate having a third flat portion, a third right side inclined plate portion extended curvedly from one end of the third flat portion and having a third right side lower groove formed at the lower portion thereof and a third right side upper groove formed at the upper portion thereof, and a third left side inclined plate portion extended curvedly from the other end of the third flat portion and having a third left side lower groove formed at the lower portion thereof and a third left side upper groove formed at the upper portion thereof; and a fourth coupling plate having a fourth flat portion, a fourth right side inclined plate portion extended curvedly from one end of the fourth flat portion and having a fourth right side lower groove formed at the lower portion thereof and a fourth right side upper groove formed at the upper portion thereof, and a fourth left side inclined plate portion extended curvedly from the other end of the fourth flat portion and having a fourth left side lower groove formed at the lower portion thereof and a fourth left side upper groove formed at the upper portion thereof.

Additionally, the connecting structure of the present invention may include a plate member coupled on one surface or both surfaces of the node member.

The plate member of the connecting structure of the present invention includes, as shown in FIG. 12, a plurality of through-holes formed thereon to pass a screw therethrough, and a fastening member having a loop-like bending portion formed at one end thereof and a fastening portion formed at the other end thereof, the fastening portion having a screw thread formed along the outer periphery thereof, such that the loop-like bending portion of the fastening member is adapted to hang on a predetermined position of the truss member and the screw thread portion is adapted to be passed through each of the through-holes in such a manner as to be fastened by means of the screw, thereby coupling the plate member and the node member to each other.

Otherwise, the plate member of the connecting structure of the present invention includes, as shown in FIG. 13, a plurality of through-holes formed thereon to pass a screw therethrough, and the node member has a screw hole having a screw thread formed on the surface to be coupled to the plate member, such that the screw is fastened to the plate member through each of the through-holes, thereby coupling the plate member and the node member to each other.

ADVANTAGEOUS EFFECTS

According to the present invention, the connecting structure can couple the components by means of a new coupling system, but not by means of welding in forming a multi-directional truss structure having a resistance capability to external activation forces. Thus, if the components are made of a steel material, the connecting structure of the present invention can prevent the rigidity of the material from being lowered by the generation of heat during welding, and contrarily, if they are not made of the steel material (for example, if they are made of composite materials), the connecting structure of the present invention can rigidly couple the components. Also, the connecting structure of the present invention can rigidly couple the components as surrounds the components easily, irrespective of the geometrical sectional shapes of the components including the truss members, thereby reducing the working time for forming complicated and various truss structures. Further, the connecting structure of the present invention can check the safety of the coupled portions by naked eyes in a relatively easier manner than welding, thereby improving the reliability of the coupled portions.

When the truss connecting structure is used as a steel bar net, a deck plate, and an integrated type of wall form, it is capable of having sufficient rigidity, and especially, when it is used as a deck plate, it has a multi-directional truss structure, such that even when it placed on the lower surface of the deck plate is disposed in any direction thereof, the connecting structure can sufficiently support the load applied to the deck plate.

BRIEF DESCRIPTION OF THE DRAWINGS

FIGS. 1 to 5 are views showing examples of the conventional truss structures.

FIG. 6 is a perspective view showing a connecting structure according to the present invention.

FIG. 7 is a separate perspective view showing a node member of the connecting structure of FIG. 6.

FIG. 8 is a view showing the state of the connecting structure of FIG. 6 resistant to bending stress.

FIGS. 9 to 11 are views showing another example of node member of the connecting structure according to the present invention.

FIGS. 12 and 13 are views showing the connecting structure of FIG. 6 used as a deck plate.

FIG. 14 is a view showing the connecting structure having another example of node member used as the deck plate.

FIGS. 15 to 18 are views showing the connecting structure of FIG. 6 used as a wall body.

FIGS. 19 to 21 are views showing variations of the connecting structure of FIG. 6.

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, an explanation on the connecting structure according to a preferred embodiment of the present invention will be in detail given with reference to the attaching drawings.

FIGS. 6 to 8 show the connecting structure according to the present invention, wherein FIG. 6 is a perspective view showing a connecting structure according to the present invention, FIG. 7 is a separate perspective view showing a node member of the connecting structure of FIG. 6, and FIG. 8 is a view showing the state of the connecting structure of FIG. 6 resistant to bending stress.

As shown in FIGS. 6 to 8, the connecting structure according to the present invention includes a square node member 10, a lower truss member 20, an upper truss member 30, and a filler 40.

The square node member 10 has an accommodating space formed therein, and as shown in FIG. 7, it is separably assembled by connecting a first lower column portion 11, a second lower column portion 12, a middle column portion 13, a first upper column portion 14, and a second upper column portion 15.

In the case where the truss member has a round sectional shape having a groove corresponding to the round shape, for example, the first lower column portion 11 has an opened column shape and first semicircular grooves 112 formed in one direction at the top portion thereof.

The second lower column portion 12 is coupled to the top side of the first lower column portion 11 and has second semicircular grooves 122 formed in the same direction as the first grooves 112 at the bottom portion thereof. Further, the second lower column portion 12 has third semicircular grooves 124 formed in a different direction from the second grooves 122, that is, in a crossing direction relative to the first grooves 112 at the top portion thereof.

The first grooves 112 and the second grooves 122 face each other to form a first lower through-hole 72.

The middle column portion 13 is coupled to the top side of the second lower column portion 12 and has fourth semicircular grooves 132 formed in the same direction as the third grooves 124 at the bottom portion thereof. Further, the middle column portion 13 has fifth semicircular grooves 134 formed in the same direction as the fourth grooves 132 at the top portion thereof.

The third grooves 124 and the fourth grooves 132 face each other to form a second lower through-hole 74.

The first upper column portion 14 is coupled to the top side of the middle column portion 13 and has sixth semicircular grooves 144 formed in the same direction as the fifth grooves 134 at the bottom portion thereof. Further, the first upper column portion 14 has seventh semicircular grooves 142 formed in a crossing direction relative to the sixth grooves 144 at the top portion thereof.

The fifth grooves 134 and the sixth grooves 144 face each other to form a first upper through-hole 82.

The second upper column portion 15 is coupled to the top side of the first upper column portion 14 and has eighth semicircular grooves 12 formed in the same direction as the seventh grooves 142 at the bottom portion thereof.

The seventh grooves 142 and the eighth grooves 152 face each other to form a second upper through-hole 84.

As shown in FIG. 6, the lower truss member 20 is disposed penetratingly at the lower portion of the square node member 10 and is made of a material having tension and compression-resistant rigidity, while having a predetermined length.

Further, the lower truss member 20 includes a lower transverse tension and compression rod 22 having a predetermined length and a lower longitudinal tension and compression rod 24 having a predetermined length and disposed to cross the lower transverse tension and compression rod 22.

Also, the lower transverse tension and compression rod 22 passes through the first lower through-hole 72, and the lower longitudinal tension and compression rod 24 passes through the second lower through-hole 74.

The upper truss member 30 is disposed penetratingly at the upper portion of the square node member 10 in such a manner as to be spaced apart from the lower truss member 20, and it is made of a material having tension and compression-resistant rigidity, while having a predetermined length.

Further, the upper truss member 20 includes an upper transverse tension and compression rod 32 having a predetermined length and an upper longitudinal tension and compression rod 34 having a predetermined length and disposed to cross the upper transverse tension and compression rod 32.

Also, the upper transverse tension and compression rod 32 is disposed penetratingly at the first upper through-hole 82, and the upper longitudinal tension and compression rod 34 is disposed penetratingly to the second upper through-hole 84.

On the other hand, according to the preferred embodiment of the present invention, the lower truss member 20 and the upper truss member 30 are formed of a steel bar.

The filler 40 is filled in the square node member 10 in such a manner as to couple the lower truss member 20 and the upper truss member 30 therewith.

Further, the filler 40 keeps its fluid state at the time of being initially injected into the accommodating space of the square node member 10 so as to surround the lower truss member 20 and the upper truss member 30, and after that, as time elapses, it is hardened to rigidly couple the lower truss member 20 and the upper truss member 30 therewith.

In the preferred embodiment of the present invention, the filler 40 is formed of a cement mortar that is a mixture of sand, cement and water.

Under the above configuration, the connecting structure 100 according to the preferred embodiment of the present invention is formed as follows.

First, the plurality of first lower column portions 11 are arranged in a lattice type.

Next, the lower transverse tension and compression rod 22 are placed at the top portions of the first grooves 112.

After that, the second lower column portions 12 are placed at the top sides of the first lower column portions 11.

As a result, the first grooves 112 and the second grooves 122 face each other to form the first lower through-hole 72.

Next, the lower longitudinal tension and compression rod 24 are placed at the top portions of the third grooves 124 formed on the second lower column portion 12.

Of course, the lower transverse tension and compression rod 22 placed at the first grooves 112 cross the lower longitudinal tension and compression rod 24 placed at the third grooves 124.

After that, the middle column portions 13 are placed at the top sides of the second lower column portions 12. At this time, the third grooves 124 and the fourth grooves 132 face each other to form the second lower through-hole 74.

Next, the upper transverse tension and compression rod 32 are placed at the top portions of the fifth grooves 134 formed on the middle column portion 13.

After that, the first upper column portions 14 are placed at the top sides of the middle column portions 13. At this time, the fifth grooves 134 and the sixth grooves 144 face each other to form the first upper through-hole 82.

Next, the middle column portions 13 are placed at the top sides of the second lower column portions 12. At this time, the third grooves 124 and the fourth grooves 132 face each other to form the second lower through-hole 74.

Then, the upper longitudinal tension and compression rod 34 are placed at the top portions of the seventh grooves 142 formed on the top sides of the first upper column portion 14.

After that, the second upper column portions 15 are placed at the top sides of the first upper column portions 14.

At this time, the seventh grooves 142 and the eighth grooves 152 face each other to form the second upper through-hole 84.

Next, the filler 40 that is formed of a cement mortar obtained by the mixture of sand, cement and water is injected from the top portion of the square node member 10 into the bottom portion thereof.

Then, if a predetermined period of time elapses, the filler 40 is hardened to rigidly connect the lower truss member 20 and the upper truss member 30 thereto.

That is, the activation forces like the tension and compression applied to the lower truss member 20 and the upper truss member 30 are resistant by their connecting forces with the hardened filler 40.

In more detail, the activation forces like the tension and compression applied to the lower truss member 20 and the upper truss member 30 are resistant by means of the steel bars thereof, and the activation forces like tension load, compression load, and bending load applied thereto are resistant by means of the hardened filler 40.

And, the activation forces applied to the lower truss member 20 and the upper truss member 30 generate stress according to the bending load as shown in a Venn diagram of FIG. 8 in the filler 40.

A point A in FIG. 8 serves as a lever, and the stress becomes gradually strong as distant from the point A.

An arrow B in FIG. 8 denotes the direction to which the bending load is applied.

Further, the stress generated by the bending load is resistant by the filler 40 formed of the hardened cement mortar.

The hardened cement mortar is a material that is especially strong with respect to the compression and is relatively weak with respect to the tension. So as to increase the tension resistance, thus, the cement mortar is added with one selected from steel wires, steel fiber, and other fiber materials.

On the other hand, the filler 40 is formed of the cement mortar in the preferred embodiment of the present invention, but it is not limited thereto.

When the filler 40 is formed of a resin hardened after injected at a fluid state into the square node member 10, it has the same effect as the cement mortar.

MODE FOR THE INVENTION

Next, an explanation on another type of the connecting structure according to the present invention will be given.

A hexagonal node member 110 according to the present invention has an accommodating space formed therein, and it is separably assembled by connecting a first coupling plate 113, a second coupling plate 114, a third coupling plate 116, and a fourth coupling plate 118.

In the case where the truss member has a round sectional shape having a groove corresponding to the round shape, for example, as shown in FIGS. 9 to 11, the first coupling plate 113 includes a first flat portion 1121, a first right side inclined plate portion 1122 extended curvedly from one end of the first flat portion 1121 and having a first right side lower groove 1123 of a semicircular shape formed at the lower portion thereof and a first right side upper groove 1124 of a semicircular shape formed at the upper portion thereof, and a first left side inclined plate portion 1125 extended curvedly from the other end of the first flat portion 1121 and having a first left side lower groove 1126 of a semicircular shape formed at the lower portion thereof and a first left side upper groove 1127 of a semicircular shape formed at the upper portion thereof.

The second coupling plate 114 includes a second flat portion 1141, a second right side inclined plate portion 1142 extended curvedly from one end of the second flat portion 1141 and having a second right side lower groove 1143 of a semicircular shape formed at the lower portion thereof and a second right side upper groove 1144 of a semicircular shape formed at the upper portion thereof, and a second left side inclined plate portion 1145 extended curvedly from the other end of the second flat portion 1141 and having a second left side lower groove 1146 of a semicircular shape formed at the lower portion thereof and a second left side upper groove 1147 of a semicircular shape formed at the upper portion thereof.

The third coupling plate 116 includes a third flat portion 1161, a third right side inclined plate portion 1162 extended curvedly from one end of the third flat portion 1161 and having a third right side lower groove 1163 of a semicircular shape formed at the lower portion thereof and a third right side upper groove 1164 of a semicircular shape formed at the upper portion thereof, and a third left side inclined plate portion 1165 extended curvedly from the other end of the third flat portion 1161 and having a third left side lower groove 1166 of a semicircular shape formed at the lower portion thereof and a third left side upper groove 1167 of a semicircular shape formed at the upper portion thereof.

The fourth coupling plate 118 includes a fourth flat portion 1181, a fourth right side inclined plate portion 1182 extended curvedly from one end of the fourth flat portion 1181 and having a fourth right side lower groove 1183 of a semicircular shape formed at the lower portion thereof and a fourth right side upper groove 1184 of a semicircular shape formed at the upper portion thereof, and a fourth left side inclined plate portion 1185 extended curvedly from the other end of the fourth flat portion 1181 and having a fourth left side lower groove 1186 of a semicircular shape formed at the lower portion thereof and a fourth left side upper groove 1187 of a semicircular shape formed at the upper portion thereof.

Then, the first coupling plate 113, the second coupling plate 114, the third coupling plate 116, and the fourth coupling plate 118 are connected to one another, thereby forming one closed space portion.

Under the above configuration, the hexagonal node member 110 according to the present invention is assembled as follows.

First, the lower transverse tension and compression rod 22 is placed to cross the lower longitudinal tension and compression rod 24.

At this time, the ends of the lower transverse tension and compression rod 22 and the lower longitudinal tension and compression rod 24 are respectively supported by means of a tool like a jig (which is not shown in the drawings).

After that, the upper transverse tension and compression rod 32 is placed to cross the upper longitudinal tension and compression rod 34, while being upwardly spaced apart from the lower transverse tension and compression rod 22 and the lower longitudinal tension and compression rod 24.

At this time, in the same manner as above the ends of the upper transverse tension and compression rod 32 and the upper longitudinal tension and compression rod 34 are respectively supported by means of a jig (which is not shown in the drawings).

Next, the first coupling plate 113, the second coupling plate 114, the third coupling plate 116, and the fourth coupling plate 118 are placed at the points where the lower transverse tension and compression rod 22 crosses the lower longitudinal tension and compression rod 24 and the upper transverse tension and compression rod 32 crosses the upper longitudinal tension and compression rod 34.

Then, the first coupling plate 113, the second coupling plate 114, the third coupling plate 116, and the fourth coupling plate 118 are moved to come into contact with one another.

As a result, as shown in FIG. 10, the first right side lower groove 1123 and the second left side lower groove 1146 form a first lower through-hole 162 of a round shape, through which the lower transverse tension and compression rod 22 is passed.

In the same manner as above, the first right side upper groove 1124 and the second left side upper groove 1147 form a first upper through-hole 166 of a round shape, through which the upper transverse tension and compression rod 32 is passed.

Also, the second right side lower groove 1143 and the third left side lower groove 1166 form a second lower through-hole 164 of a round shape, through which the lower longitudinal tension and compression rod 24 is passed.

And, the second right side upper groove 1144 and the third left side upper groove 1167 form a second upper through-hole 168 of a round shape, through which the upper longitudinal tension and compression rod 34 is passed.

In the same manner as above, the third coupling plate 116 and the fourth coupling plate 118 are coupled to each other, thereby forming the first lower through-hole 162, the second lower through-hole 164, the first upper through-hole 166, and the second upper through-hole 168.

Next, the filler 40 formed of a cement mortar obtained by the mixture of sand, cement and water is injected from the top portion of the hexagonal node member 110 into the bottom portion thereof.

Then, if a predetermined period of time elapses, the filler 40 is hardened to rigidly connect the lower truss member 20 and the upper truss member 30 thereto.

The next processes are the same as mentioned in the preferred embodiment of the present invention, and an explanation on them will be avoided.

Also, the connecting structure 100 according to the present invention can be used as a steel bar net.

As the present invention is applied to a process of making the steel bar net in a slurry wall technique, the process can be easily carried out.

Also, as shown in FIGS. 19 to 21, if a connecting structure where the lower truss members and the upper truss members are connected in parallel relation to each other is coupled with a lower plate member on one surface thereof, it can be easily applied as a deck plate for slab construction, and otherwise, if it is coupled with a plate member on the both surfaces thereof, it can be easily applied as a steel bar net for diaphragm construction.

A connecting structure where the lower truss members and the upper truss members are made in an inclined trapezoidal shape when viewed at a side can be easily applied as the steel bar net for wall construction, and otherwise, a connecting structure where the lower truss members and the upper truss members are bent in accordance with the tunnel shape can be easily applied as the steel bar net in a tunnel lining construction.

Next, an explanation on the example where the connecting structure 100 of the present invention is used as the deck plate will be given in detail with reference to FIG. 12.

When the connecting structure 100 of the present invention is used as the deck plate, the square node member 10 is coupled to the lower plate member 50 on one surface thereof.

The lower plate member 50 is of a plate-like shape and has a plurality of lower plate through-holes 52 formed thereon.

Further, according to the present invention, the lower plate member 50 includes the lower plate through-holes 52 formed to pass a plurality of hanging members 90 therethrough and the hanging members 90 each having a loop-like bending portion 91 formed at one end thereof and an extended portion 93 formed at the other end thereof, the extended portion 93 having a screw thread formed along the outer periphery thereof. The loop-like bending portion 91 of each hanging member 90 is adapted to hang on a predetermined position of the truss member and the extended portion 93 is adapted to be passed through the lower plate through-hole 52 in such a manner as to be fastened by means of a screw, thereby coupling the lower plate member 50 and the square node member 10 to each other.

Next, an explanation on the example where the connection structure 100 according to the present invention is applied as a deck plate in a construction site will be simply given.

First, a steel frame of a structure is formed.

That is, the steel frame is assembled to form columns and beams in accordance with the number of stories of the structure.

Next, a deck plate is disposed between the steel frames forming the stories.

At this time, the deck plate is made at a larger area than the conventional one-directional deck plate, and therefore, the number of deck plates assembled to one another can be reduced.

Also, the direction of arranging the deck plates has no limitation the conventional deck plate has had in the arranging direction design.

That is, in case of the conventional deck plate, the plane arrangement design of the beams should be made in one directional slab (the length of short side×2=the length of long side) according to the deck plate arrangement conditions, but in case of the connecting structure of this invention, it is resistant to the load in a multi-direction, such that it is made conveniently in the arrangement in accordance with the beam arrangements of the steel structure and is disposed over the steel beams, with no limit of the plane arrangements.

Next, concrete is cast to the top surface of the deck plates.

Then, the concrete is cast evenly between the lower transverse tension and compression rod 22 and the lower longitudinal tension and compression rod 24 and between the upper transverse tension and compression rod 32 and the upper longitudinal tension and compression rod 34.

Next, after the concrete is cured, and the lower plate member is removed, thereby finishing the floor construction of a desired story.

In other words, unlike the existing constructing manner, there is no need for carrying out the temporary form-forming process and the floor steel bar-arranging process before the concrete is cast, thereby greatly reducing the construction period of time.

Further, unlike the existing deck plate manner, the multi-directional deck plate as the connecting structure of this invention can be applied to a floor design of a two-directional slab (the length of short side×2=the length of long side) structure and then, the concrete is cast thereto, thereby greatly reducing the construction period of time.

As mentioned above, also, the connecting structures of the present invention can be disposed in various directions in accordance with the steel structure, without any limit where they are disposed only in a given direction over the steel beams.

Moreover, as shown in FIG. 14, when the square node member 10 is replaced with another type of the hexagonal node member 110, the connecting structure 100 of this invention applied to the deck plate has the same effects as mentioned above.

In this case, only the shape of the node member is different, and therefore, since the other parts thereof are the same as mentioned above, an explanation on them will be avoided.

Next, an explanation on the example where the connecting structure 100 of the present invention is used to form a wall body will be given with reference to FIGS. 15 to 18.

So as to form the wall body by using the connecting structure 100 of the present invention, an upper plate member 60 is further coupled on the other surface of the square node member 10.

In the preferred embodiment of the present invention, the upper plate member 60 includes a plurality of upper plate through-holes 62 are formed to pass the plurality of hanging members 90 therethrough and the hanging members 90 each having the loop-like bending portion 91 formed at one end thereof and the extended portion 93 formed at the other end thereof, the extended portion 93 having a screw thread formed along the outer periphery thereof. The loop-like bending portion 91 of each hanging member 90 is adapted to hang on a predetermined position of the truss member and the extended portion 93 is adapted to be passed through the upper plate through-hole 62 in such a manner as to be fastened by means of a screw, thereby coupling the upper plate member 60 and the square node member 10 to each other.

In another embodiment of coupling the upper plate member 60 with the square node member 10, the square node member 10 has a screw hole 42 having a screw thread thereon, and the upper plate member 60 has the upper plate through-hole 62 formed to pass a screw 54 therethrough, such that the screw 54 is fastened through the upper plate through-hole 62 on the upper plate member 60 to couple the upper plate member 60 with the square node member 10.

Next, an explanation on the example where the wall body is constructed by using the connecting structure 100 of this invention will be given.

First, the connecting structure 100 coupled on the both surfaces thereof with the upper and lower plate members is disposed at a position where the wall body to be constructed is formed.

The wall body is previously made in a factory in the above-mentioned method, as shown in FIG. 15.

Therefore, the wall body is just disposed by using a crane in a construction site, and thus, the number of persons working there is reduced. Also, the wall body is made carefully, thereby ensuring good quality.

And, a plurality of wall bodies having the same size are erected side by side in accordance with a desired length.

As a result, as shown in FIG. 17, the wall body having the desired length, that is, corresponding to the length along which the wall body is formed is erected.

Next, concrete is cast to the top surface of the wall body.

Then, the concrete is cast evenly between the lower transverse tension and compression rod 22 and the lower longitudinal tension and compression rod 24 and between the upper transverse tension and compression rod 32 and the upper longitudinal tension and compression rod 34.

Next, the concrete is cured, thereby finishing the wall body having the desired length.

In other words, unlike the existing constructing manner, there is no need for carrying out the steel bar-arranging process, the coupling wire-forming process, and the form-disposing process before the concrete is cast, thereby greatly reducing the construction period of time.

On the other hand, when the square node member 10 is replaced with another type of the hexagonal node member 110, the connecting structure 100 of the present invention applied to the wall body has the same effects as mentioned above.

On the other hand, in the above-mentioned process the lower transverse tension and compression rod 22 and the upper transverse tension and compression rod 32 are disposed in parallel to a horizontal line, as shown in FIG. 19, but they are not limited thereto.

That is, as shown in FIGS. 20 and 21, the lower transverse tension and compression rod 22 and the upper longitudinal tension and compression rod 32 may be disposed inclined with reference to the horizontal line or bent to an arch shape.

Especially, in the case where the lower transverse tension and compression rod 22 and the upper longitudinal tension and compression rod 32 are disposed bent to the arch shape, the connecting structure can be used for various structures like a tunnel or support the load of the structure.

INDUSTRIAL APPLICABILITY

Such trusses are used for supporting the load of buildings or civil structures, and thus, the integral type truss connecting structure can safely endure the working load during the construction of the structure, the load of the structure itself at the state of the construction, and the usage load applied to the structure after the construction. 

1. A connecting structure comprising: a node member having an accommodating space formed therein; a lower truss member disposed penetratingly at the lower portion of the node member, the lower truss member being made of a material with tension and compression-resistant rigidity and having a predetermined length; an upper truss member disposed penetratingly at the upper portion of the node member in such a manner as to be spaced apart from the lower truss member, the upper truss member being made of a material with tension and compression-resistant rigidity and having a predetermined length; and a filler adapted to be filled in the node member in such a manner as to be initially injected in a fluid state into the accommodating space of the node member so as to surround the lower truss member and the upper truss member, and then to be hardened as time elapses so as to rigidly couple the lower truss member and the upper truss member therewith.
 2. The connecting structure according to claim 1, wherein the lower truss member comprises: a lower transverse tension and compression rod having a predetermined length; and a lower longitudinal tension and compression rod having a predetermined length and disposed to cross the lower transverse tension and compression rod, and wherein the upper truss member comprises: an upper transverse tension and compression rod having a predetermined length; and an upper longitudinal tension and compression rod having a predetermined length and disposed to cross the upper transverse tension and compression rod.
 3. The connecting structure according to claim 1, wherein the filler further comprises a steel wire as an additive material, so as to complement the resistance capability to the external load after being hardened.
 4. The connecting structure according to claim 1, wherein the node member comprises: a first lower column portion having first grooves formed in one direction at the top portion thereof; a second lower column portion adapted to be coupled to the top side of the first lower column portion and having second grooves formed in the same direction as the first grooves at the bottom portion thereof and third grooves formed in a different direction from the second grooves at the top portion thereof; a middle column portion adapted to be coupled to the top side of the second lower column portion and having fourth grooves formed in the same direction as the third grooves at the bottom portion thereof and fifth grooves formed in the same direction as the fourth grooves at the top portion thereof; a first upper column portion adapted to be coupled to the top side of the middle column portion and having sixth grooves formed in the same direction as the fifth grooves at the bottom portion thereof and seventh grooves formed in a different direction from the sixth grooves at the top portion thereof; and a second upper column portion adapted to be coupled to the top side of the first upper column portion and having eighth grooves formed in the same direction as the seventh grooves at the bottom portion thereof.
 5. The connecting structure according to claim 1, wherein the node member comprises: a first coupling plate having a first flat portion, a first right side inclined plate portion extended curvedly from one end of the first flat portion and having a first right side lower groove formed at the lower portion thereof and a first right side upper groove formed at the upper portion thereof, and a first left side inclined plate portion extended curvedly from the other end of the first flat portion and having a first left side lower groove formed at the lower portion thereof and a first left side upper groove formed at the upper portion thereof; a second coupling plate having a second flat portion, a second right side inclined plate portion extended curvedly from one end of the second flat portion and having a second right side lower groove formed at the lower portion thereof and a second right side upper groove formed at the upper portion thereof, and a second left side inclined plate portion extended curvedly from the other end of the second flat portion and having a second left side lower groove formed at the lower portion thereof and a second left side upper groove formed at the upper portion thereof; a third coupling plate having a third flat portion, a third right side inclined plate portion extended curvedly from one end of the third flat portion and having a third right side lower groove formed at the lower portion thereof and a third right side upper groove formed at the upper portion thereof, and a third left side inclined plate portion extended curvedly from the other end of the third flat portion and having a third left side lower groove formed at the lower portion thereof and a third left side upper groove formed at the upper portion thereof; and a fourth coupling plate having a fourth flat portion, a fourth right side inclined plate portion extended curvedly from one end of the fourth flat portion and having a fourth right side lower groove formed at the lower portion thereof and a fourth right side upper groove formed at the upper portion thereof, and a fourth left side inclined plate portion extended curvedly from the other end of the fourth flat portion and having a fourth left side lower groove formed at the lower portion thereof and a fourth left side upper groove formed at the upper portion thereof, wherein the first coupling plate, the second coupling plate, the third coupling plate, and the fourth coupling plate are connected to one another, thereby forming one closed space portion.
 6. A connecting structure comprising: a node member having an accommodating space formed therein; a lower truss member disposed bent to an arch shape penetratingly at the lower portion of the node member, the lower truss member being made of a material with tension and compression-resistant rigidity and having a predetermined length; an upper truss member disposed bent to an arch shape penetratingly at the upper portion of the node member in such a manner as to be spaced apart from the lower truss member, the upper truss member being made of a material with tension and compression-resistant rigidity and having a predetermined length; and a filler adapted to be filled in the node member in such a manner as to be initially injected in a fluid state into the accommodating space of the node member so as to surround the lower truss member and the upper truss member, and then to be hardened as time elapses so as to rigidly couple the lower truss member and the upper truss member therewith.
 7. The connecting structure according to claim 6, wherein the lower truss member comprises: a lower transverse tension and compression rod having a predetermined length; and a lower longitudinal tension and compression rod having a predetermined length and disposed to cross the lower transverse tension and compression rod, and wherein the upper truss member comprises: an upper transverse tension and compression rod having a predetermined length; and an upper longitudinal tension and compression rod having a predetermined length and disposed to cross the upper transverse tension and compression rod.
 8. The connecting structure according to claim 6, wherein the filler further comprises a steel wire as an additive material, so as to complement the resistance capability to the external load after being hardened.
 9. The connecting structure according to claim 6, wherein the node member comprises: a first lower column portion having first grooves formed in one direction at the top portion thereof; a second lower column portion adapted to be coupled to the top side of the first lower column portion and having second grooves formed in the same direction as the first grooves at the bottom portion thereof and third grooves formed in a different direction from the second grooves at the top portion thereof; a middle column portion adapted to be coupled to the top side of the second lower column portion and having fourth grooves formed in the same direction as the third grooves at the bottom portion thereof and fifth grooves formed in the same direction as the fourth grooves at the top portion thereof; a first upper column portion adapted to be coupled to the top side of the middle column portion and having sixth grooves formed in the same direction as the fifth grooves at the bottom portion thereof and seventh grooves formed in a different direction from the sixth grooves at the top portion thereof; and a second upper column portion adapted to be coupled to the top side of the first upper column portion and having eighth grooves formed in the same direction as the seventh grooves at the bottom portion thereof.
 10. The connecting structure according to claim 6, wherein the node member comprises: a first coupling plate having a first flat portion, a first right side inclined plate portion extended curvedly from one end of the first flat portion and having a first right side lower groove formed at the lower portion thereof and a first right side upper groove formed at the upper portion thereof, and a first left side inclined plate portion extended curvedly from the other end of the first flat portion and having a first left side lower groove formed at the lower portion thereof and a first left side upper groove formed at the upper portion thereof; a second coupling plate having a second flat portion, a second right side inclined plate portion extended curvedly from one end of the second flat portion and having a second right side lower groove formed at the lower portion thereof and a second right side upper groove formed at the upper portion thereof, and a second left side inclined plate portion extended curvedly from the other end of the second flat portion and having a second left side lower groove formed at the lower portion thereof and a second left side upper groove formed at the upper portion thereof; a third coupling plate having a third flat portion, a third right side inclined plate portion extended curvedly from one end of the third flat portion and having a third right side lower groove formed at the lower portion thereof and a third right side upper groove formed at the upper portion thereof, and a third left side inclined plate portion extended curvedly from the other end of the third flat portion and having a third left side lower groove formed at the lower portion thereof and a third left side upper groove formed at the upper portion thereof; and a fourth coupling plate having a fourth flat portion, a fourth right side inclined plate portion extended curvedly from one end of the fourth flat portion and having a fourth right side lower groove formed at the lower portion thereof and a fourth right side upper groove formed at the upper portion thereof, and a fourth left side inclined plate portion extended curvedly from the other end of the fourth flat portion and having a fourth left side lower groove formed at the lower portion thereof and a fourth left side upper groove formed at the upper portion thereof, wherein the first coupling plate, the second coupling plate, the third coupling plate, and the fourth coupling plate are connected to one another, thereby forming one closed space portion.
 11. A connecting structure comprising: a node member having an accommodating space formed therein; a lower truss member disposed penetratingly at the lower portion of the node member, the lower truss member being made of a material with tension and compression-resistant rigidity and having a predetermined length; an upper truss member disposed penetratingly at the upper portion of the node member in such a manner as to be spaced apart from the lower truss member, the upper truss member being made of a material with tension and compression-resistant rigidity and having a predetermined length; a filler adapted to be filled in the node member in such a manner as to be initially injected in a fluid state into the accommodating space of the node member so as to surround the lower truss member and the upper truss member, and then to be hardened as time elapses so as to rigidly couple the lower truss member and the upper truss member therewith; and a lower plate member adapted to be coupled on one surface of the node member, the lower plate member having a plate-like shape.
 12. The connecting structure according to claim 11, wherein the node member comprises a screw hole portion having a screw tap formed on the surface coupled to the lower plate member, such that when the filler is filled in the node member, the space of the screw hole portion is not filled with the filler, and the lower plate member comprises a plurality of through-holes formed thereon to pass a screw therethrough, such that the screw is fastened on the lower plate member through each of the through-holes, thereby coupling the lower plate member and the node member.
 13. The connecting structure according to claim 11, wherein the node member comprises a hanging member having a bending portion formed hung on the lower truss member and an extended portion formed extended from the bending portion and having a screw thread formed along the outer periphery thereof, and the lower plate member comprises a plurality of through-hole formed thereon to pass a screw therethrough and a nut adapted to be fitted along the outer periphery of the extended portion and contacted with the lower plate member when the extended portion is exposed through each of the through-holes on the lower plate member, such that the bending portion is locked to the lower truss member and the nut is fastened to the extended portion, thereby coupling the lower plate member and the node member.
 14. The connecting structure according to claim 11, wherein the lower truss member comprises: a lower transverse tension and compression rod having a predetermined length; and a lower longitudinal tension and compression rod having a predetermined length and disposed to cross the lower transverse tension and compression rod, and wherein the upper truss member comprises: an upper transverse tension and compression rod having a predetermined length; and an upper longitudinal tension and compression rod having a predetermined length and disposed to cross the upper transverse tension and compression rod.
 15. The connecting structure according to claim 11, wherein the filler further comprises a steel wire as an additive material, so as to complement the resistance capability to the external load after being hardened.
 16. The connecting structure according to claim 11, wherein the node member comprises: a first lower column portion having first grooves formed in one direction at the top portion thereof; a second lower column portion adapted to be coupled to the top side of the first lower column portion and having second grooves formed in the same direction as the first grooves at the bottom portion thereof and third grooves formed in a different direction from the second grooves at the top portion thereof; a middle column portion adapted to be coupled to the top side of the second lower column portion and having fourth grooves formed in the same direction as the third grooves at the bottom portion thereof and fifth grooves formed in the same direction as the fourth grooves at the top portion thereof; a first upper column portion adapted to be coupled to the top side of the middle column portion and having sixth grooves formed in the same direction as the fifth grooves at the bottom portion thereof and seventh grooves formed in a different direction from the sixth grooves at the top portion thereof; and a second upper column portion adapted to be coupled to the top side of the first upper column portion and having eighth grooves formed in the same direction as the seventh grooves at the bottom portion thereof.
 17. The connecting structure according to claim 11, wherein the node member comprises: a first coupling plate having a first flat portion, a first right side inclined plate portion extended curvedly from one end of the first flat portion and having a first right side lower groove formed at the lower portion thereof and a first right side upper groove formed at the upper portion thereof, and a first left side inclined plate portion extended curvedly from the other end of the first flat portion and having a first left side lower groove formed at the lower portion thereof and a first left side upper groove formed at the upper portion thereof; a second coupling plate having a second flat portion, a second right side inclined plate portion extended curvedly from one end of the second flat portion and having a second right side lower groove formed at the lower portion thereof and a second right side upper groove formed at the upper portion thereof, and a second left side inclined plate portion extended curvedly from the other end of the second flat portion and having a second left side lower groove formed at the lower portion thereof and a second left side upper groove formed at the upper portion thereof; a third coupling plate having a third flat portion, a third right side inclined plate portion extended curvedly from one end of the third flat portion and having a third right side lower groove formed at the lower portion thereof and a third right side upper groove formed at the upper portion thereof, and a third left side inclined plate portion extended curvedly from the other end of the third flat portion and having a third left side lower groove formed at the lower portion thereof and a third left side upper groove formed at the upper portion thereof; and a fourth coupling plate having a fourth flat portion, a fourth right side inclined plate portion extended curvedly from one end of the fourth flat portion and having a fourth right side lower groove formed at the lower portion thereof and a fourth right side upper groove formed at the upper portion thereof, and a fourth left side inclined plate portion extended curvedly from the other end of the fourth flat portion and having a fourth left side lower groove formed at the lower portion thereof and a fourth left side upper groove formed at the upper portion thereof, wherein the first coupling plate, the second coupling plate, the third coupling plate, and the fourth coupling plate are connected to one another, thereby forming one closed space portion.
 18. A connecting structure comprising: a node member having an accommodating space formed therein; a lower truss member disposed bent to an arch shape penetratingly at the lower portion of the node member, the lower truss member being made of a material with tension and compression-resistant rigidity and having a predetermined length; an upper truss member disposed bent to an arch shape penetratingly at the upper portion of the node member in such a manner as to be spaced apart from the lower truss member, the upper truss member being made of a material with tension and compression-resistant rigidity and having a predetermined length; a filler adapted to be filled in the node member in such a manner as to be initially injected in a fluid state into the accommodating space of the node member so as to surround the lower truss member and the upper truss member, and then to be hardened as time elapses so as to rigidly couple the lower truss member and the upper truss member therewith; and a lower plate member adapted to be coupled on one surface of the node member, the lower plate member having a plate-like shape and formed curved correspondingly to the lower truss member in parallel relation with the lower truss member.
 19. The connecting structure according to claim 18, wherein the node member comprises a screw hole portion having a screw tap formed on the surface coupled to the lower plate member, such that when the filler is filled in the node member, the space of the screw hole portion is not filled with the filler, and the lower plate member comprises a plurality of through-holes formed thereon to pass a screw therethrough, such that the screw is fastened on the lower plate member through each of the through-holes, thereby coupling the lower plate member and the node member.
 20. The connecting structure according to claim 18, wherein the node member comprises a hanging member having a bending portion formed hung on the lower truss member and an extended portion formed extended from the bending portion and having a screw thread formed along the outer periphery thereof, and the lower plate member comprises a plurality of through-holes formed thereon to pass a screw therethrough and a nut adapted to be fitted along the outer periphery of the extended portion and contacted with the lower plate member when the extended portion is exposed through each of the through-holes on the lower plate member, such that the bending portion is locked to the lower truss member and the nut is fastened to the extended portion, thereby coupling the lower plate member and the node member.
 21. The connecting structure according to claim 18, wherein the lower truss member comprises: a lower transverse tension and compression rod having a predetermined length; and a lower longitudinal tension and compression rod having a predetermined length and disposed to cross the lower transverse tension and compression rod, and wherein the upper truss member comprises: an upper transverse tension and compression rod having a predetermined length; and an upper longitudinal tension and compression rod having a predetermined length and disposed to cross the upper transverse tension and compression rod.
 22. The connecting structure according to claim 18, wherein the filler further comprises a steel wire as an additive material, so as to complement the resistance capability to the external load after being hardened.
 23. The connecting structure according to claim 18, wherein the node member comprises: a first lower column portion having first grooves formed in one direction at the top portion thereof; a second lower column portion adapted to be coupled to the top side of the first lower column portion and having second grooves formed in the same direction as the first grooves at the bottom portion thereof and third grooves formed in a different direction from the second grooves at the top portion thereof; a middle column portion adapted to be coupled to the top side of the second lower column portion and having fourth grooves formed in the same direction as the third grooves at the bottom portion thereof and fifth grooves formed in the same direction as the fourth grooves at the top portion thereof; a first upper column portion adapted to be coupled to the top side of the middle column portion and having sixth grooves formed in the same direction as the fifth grooves at the bottom portion thereof and seventh grooves formed in a different direction from the sixth grooves at the top portion thereof; and a second upper column portion adapted to be coupled to the top side of the first upper column portion and having eighth grooves formed in the same direction as the seventh grooves at the bottom portion thereof.
 24. The connecting structure according to claim 18, wherein the node member comprises: a first coupling plate having a first flat portion, a first right side inclined plate portion extended curvedly from one end of the first flat portion and having a first right side lower groove formed at the lower portion thereof and a first right side upper groove formed at the upper portion thereof, and a first left side inclined plate portion extended curvedly from the other end of the first flat portion and having a first left side lower groove formed at the lower portion thereof and a first left side upper groove formed at the upper portion thereof; a second coupling plate having a second flat portion, a second right side inclined plate portion extended curvedly from one end of the second flat portion and having a second right side lower groove formed at the lower portion thereof and a second right side upper groove formed at the upper portion thereof, and a second left side inclined plate portion extended curvedly from the other end of the second flat portion and having a second left side lower groove formed at the lower portion thereof and a second left side upper groove formed at the upper portion thereof; a third coupling plate having a third flat portion, a third right side inclined plate portion extended curvedly from one end of the third flat portion and having a third right side lower groove formed at the lower portion thereof and a third right side upper groove formed at the upper portion thereof, and a third left side inclined plate portion extended curvedly from the other end of the third flat portion and having a third left side lower groove formed at the lower portion thereof and a third left side upper groove formed at the upper portion thereof; and a fourth coupling plate having a fourth flat portion, a fourth right side inclined plate portion extended curvedly from one end of the fourth flat portion and having a fourth right side lower groove formed at the lower portion thereof and a fourth right side upper groove formed at the upper portion thereof, and a fourth left side inclined plate portion extended curvedly from the other end of the fourth flat portion and having a fourth left side lower groove formed at the lower portion thereof and a fourth left side upper groove formed at the upper portion thereof, wherein the first coupling plate, the second coupling plate, the third coupling plate, and the fourth coupling plate are connected to one another, thereby forming one closed space portion.
 25. The connecting structure comprising: a node member having an accommodating space formed therein; a lower truss member disposed bent to an arch shape penetratingly at the lower portion of the node member, the lower truss member being made of a material with tension and compression-resistant rigidity and having a predetermined length; an upper truss member disposed bent to an arch shape penetratingly at the upper portion of the node member in such a manner as to be spaced apart from the lower truss member, the upper truss member being made of a material with tension and compression-resistant rigidity and having a predetermined length; a filler adapted to be filled in the node member in such a manner as to be initially injected in a fluid state into the accommodating space of the node member so as to surround the lower truss member and the upper truss member, and then to be hardened as time elapses so as to rigidly couple the lower truss member and the upper truss member therewith; a lower plate member adapted to be coupled on one surface of the node member, the lower plate member having a plate-like shape; and an upper plate member adapted to be coupled on the other surface of the node member, the upper plate member having a plate-like shape.
 26. The connecting structure according to claim 25, wherein the node member comprises a screw hole portion having a screw tap formed on the top and bottom surfaces thereof, such that when the filler is filled in the node member, the space of the screw hole portion is not filled with the filler, and each of the lower plate member and the upper plate member comprises a plurality of through-holes formed thereon to pass a screw therethrough, such that the screws are fastened on the lower plate member and the upper plate member through each of the through-holes, thereby coupling the lower plate member and the node member and coupling the upper plate member and the node member.
 27. The connecting structure according to claim 25, wherein the node member comprises a hanging member having a bending portion formed hung on each of the lower truss member and the upper truss member and an extended portion formed extended from the bending portion and having a screw thread formed along the outer periphery thereof, and each of the lower plate member and the upper plate member comprises a plurality of through-holes formed thereon to pass a screw therethrough and a nut adapted to be fitted along the outer periphery of the extended portion and contacted with each of the lower plate member and the upper plate member when the extended portion is exposed through each of the through-holes on each of the lower plate member and the upper plate member, such that the bending portion is locked to each of the lower truss member and the upper truss member and the nut is fastened to the extended portion, thereby coupling the lower plate member and the node member and coupling the upper plate member and the node member.
 28. The connecting structure according to claim 25, wherein the lower truss member comprises: a lower transverse tension and compression rod having a predetermined length; and a lower longitudinal tension and compression rod having a predetermined length and disposed to cross the lower transverse tension and compression rod, and wherein the upper truss member comprises: an upper transverse tension and compression rod having a predetermined length; and an upper longitudinal tension and compression rod having a predetermined length and disposed to cross the upper transverse tension and compression rod.
 29. The connecting structure according to claim 25, wherein the filler further comprises a steel wire as an additive material, so as to complement the resistance capability to the external load after being hardened.
 30. The connecting structure according to claim 25, wherein the node member comprises: a first lower column portion having first grooves formed in one direction at the top portion thereof; a second lower column portion adapted to be coupled to the top side of the first lower column portion and having second grooves formed in the same direction as the first grooves at the bottom portion thereof and third grooves formed in a different direction from the second grooves at the top portion thereof; a middle column portion adapted to be coupled to the top side of the second lower column portion and having fourth grooves formed in the same direction as the third grooves at the bottom portion thereof and fifth grooves formed in the same direction as the fourth grooves at the top portion thereof; a first upper column portion adapted to be coupled to the top side of the middle column portion and having sixth grooves formed in the same direction as the fifth grooves at the bottom portion thereof and seventh grooves formed in a different direction from the sixth grooves at the top portion thereof; and a second upper column portion adapted to be coupled to the top side of the first upper column portion and having eighth grooves formed in the same direction as the seventh grooves at the bottom portion thereof.
 31. The connecting structure according to claim 25, wherein the node member comprises: a first coupling plate having a first flat portion, a first right side inclined plate portion extended curvedly from one end of the first flat portion and having a first right side lower groove formed at the lower portion thereof and a first right side upper groove formed at the upper portion thereof, and a first left side inclined plate portion extended curvedly from the other end of the first flat portion and having a first left side lower groove formed at the lower portion thereof and a first left side upper groove formed at the upper portion thereof; a second coupling plate having a second flat portion, a second right side inclined plate portion extended curvedly from one end of the second flat portion and having a second right side lower groove formed at the lower portion thereof and a second right side upper groove formed at the upper portion thereof, and a second left side inclined plate portion extended curvedly from the other end of the second flat portion and having a second left side lower groove formed at the lower portion thereof and a second left side upper groove formed at the upper portion thereof; a third coupling plate having a third flat portion, a third right side inclined plate portion extended curvedly from one end of the third flat portion and having a third right side lower groove formed at the lower portion thereof and a third right side upper groove formed at the upper portion thereof, and a third left side inclined plate portion extended curvedly from the other end of the third flat portion and having a third left side lower groove formed at the lower portion thereof and a third left side upper groove formed at the upper portion thereof; and a fourth coupling plate having a fourth flat portion, a fourth right side inclined plate portion extended curvedly from one end of the fourth flat portion and having a fourth right side lower groove formed at the lower portion thereof and a fourth right side upper groove formed at the upper portion thereof, and a fourth left side inclined plate portion extended curvedly from the other end of the fourth flat portion and having a fourth left side lower groove formed at the lower portion thereof and a fourth left side upper groove formed at the upper portion thereof, wherein the first coupling plate, the second coupling plate, the third coupling plate, and the fourth coupling plate are connected to one another, thereby forming one closed space portion.
 32. A connecting structure comprising: a node member having an accommodating space formed therein; a lower truss member disposed bent to an arch shape penetratingly at the lower portion of the node member, the lower truss member being made of a material with tension and compression-resistant rigidity and having a predetermined length; an upper truss member disposed bent to an arch shape penetratingly at the upper portion of the node member in such a manner as to be spaced apart from the lower truss member, the upper truss member being made of a material with tension and compression-resistant rigidity and having a predetermined length; a filler adapted to be filled in the node member in such a manner as to be initially injected in a fluid state into the accommodating space of the node member so as to surround the lower truss member and the upper truss member, and then to be hardened as time elapses so as to rigidly couple the lower truss member and the upper truss member therewith; a lower plate member adapted to be coupled on one surface of the node member, the lower plate member having a plate-like shape and formed curved correspondingly to the lower truss member in parallel relation with the lower truss member; and an upper plate member adapted to be coupled on the other surface of the node member, the upper plate member having a plate-like shape and formed curved correspondingly to the upper truss member in parallel relation with the upper truss member.
 33. The connecting structure according to claim 32, wherein the node member comprises a screw hole portion having a screw tap formed on the top and bottom surfaces thereof, such that when the filler is filled in the node member, the space of the screw hole portion is not filled with the filler, and each of the lower plate member and the upper plate member comprises a plurality of through-holes formed thereon to pass a screw therethrough, such that the screws are fastened on the lower plate member and the upper plate member through each of the through-holes, thereby coupling the lower plate member and the node member and coupling the upper plate member and the node member.
 34. The connecting structure according to claim 32, wherein the node member comprises a hanging member having a bending portion formed hung on each of the lower truss member and the upper truss member and an extended portion formed extended from the bending portion and having a screw thread formed along the outer periphery thereof, and each of the lower plate member and the upper plate member comprises a plurality of through-holes formed thereon to pass a screw therethrough and a nut adapted to be fitted along the outer periphery of the extended portion and contacted with each of the lower plate member and the upper plate member when the extended portion is exposed through each of the through-holes on each of the lower plate member and the upper plate member, such that the bending portion is locked to each of the lower truss member and the upper truss member and the nut is fastened to the extended portion, thereby coupling the lower plate member and the node member to each other and coupling the upper plate member and the node member to each other.
 35. The connecting structure according to claim 32, wherein the lower truss member comprises: a lower transverse tension and compression rod having a predetermined length; and a lower longitudinal tension and compression rod having a predetermined length and disposed to cross the lower transverse tension and compression rod, and wherein the upper truss member comprises: an upper transverse tension and compression rod having a predetermined length; and an upper longitudinal tension and compression rod having a predetermined length and disposed to cross the upper transverse tension and compression rod.
 36. The connecting structure according to claim 32, wherein the filler further comprises a steel wire as an additive material, so as to complement the resistance capability to the external load after being hardened.
 37. The connecting structure according to claim 32, wherein the node member comprises: a first lower column portion having first grooves formed in one direction at the top portion thereof; a second lower column portion adapted to be coupled to the top side of the first lower column portion and having second grooves formed in the same direction as the first grooves at the bottom portion thereof and third grooves formed in a different direction from the second grooves at the top portion thereof; a middle column portion adapted to be coupled to the top side of the second lower column portion and having fourth grooves formed in the same direction as the third grooves at the bottom portion thereof and fifth grooves formed in the same direction as the fourth grooves at the top portion thereof; a first upper column portion adapted to be coupled to the top side of the middle column portion and having sixth grooves formed in the same direction as the fifth grooves at the bottom portion thereof and seventh grooves formed in a different direction from the sixth grooves at the top portion thereof; and a second upper column portion adapted to be coupled to the top side of the first upper column portion and having eighth grooves formed in the same direction as the seventh grooves at the bottom portion thereof.
 38. The connecting structure according to claim 32, wherein the node member comprises: a first coupling plate having a first flat portion, a first right side inclined plate portion extended curvedly from one end of the first flat portion and having a first right side lower groove formed at the lower portion thereof and a first right side upper groove formed at the upper portion thereof, and a first left side inclined plate portion extended curvedly from the other end of the first flat portion and having a first left side lower groove formed at the lower portion thereof and a first left side upper groove formed at the upper portion thereof; a second coupling plate having a second flat portion, a second right side inclined plate portion extended curvedly from one end of the second flat portion and having a second right side lower groove formed at the lower portion thereof and a second right side upper groove formed at the upper portion thereof, and a second left side inclined plate portion extended curvedly from the other end of the second flat portion and having a second left side lower groove formed at the lower portion thereof and a second left side upper groove formed at the upper portion thereof; a third coupling plate having a third flat portion, a third right side inclined plate portion extended curvedly from one end of the third flat portion and having a third right side lower groove formed at the lower portion thereof and a third right side upper groove formed at the upper portion thereof, and a third left side inclined plate portion extended curvedly from the other end of the third flat portion and having a third left side lower groove formed at the lower portion thereof and a third left side upper groove formed at the upper portion thereof; and a fourth coupling plate having a fourth flat portion, a fourth right side inclined plate portion extended curvedly from one end of the fourth flat portion and having a fourth right side lower groove formed at the lower portion thereof and a fourth right side upper groove formed at the upper portion thereof, and a fourth left side inclined plate portion extended curvedly from the other end of the fourth flat portion and having a fourth left side lower groove formed at the lower portion thereof and a fourth left side upper groove formed at the upper portion thereof, wherein the first coupling plate, the second coupling plate, the third coupling plate, and the fourth coupling plate are connected to one another, thereby forming one closed space portion. 